• 한국초전도ㆍ저온공학회논문지
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• 제21권3호
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• pp.6-12
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• 2019

Extended Drude model has been used to obtain information of correlations from measured optical spectra of strongly correlated electron systems. The optical self-energy can be defined by the extended Drude model formalism. One can extract the optical self-energy and the electron-boson spectral density function from measured reflectance spectra using a well-developed usual process, which is consistent with several steps including the extended Drude model and generalized Allen's formulas. Here we used a reverse process of the usual process to investigate the extended Drude analysis when an additional low-energy interband transition is included. We considered two typical electron-boson spectral density model functions for two different (normal and d-wave superconducting) material states. Our results show that the low-energy interband transition might give significant effects on the electron-boson spectral density function obtained using the usual process. However, we expect that the low-energy interband transition can be removed from measured spectra in a proper way if the transition is well-defined or well-known.

• Structural Engineering and Mechanics
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• 제71권6호
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• pp.683-697
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• 2019

The reinforced concrete (RC) structures usually suffer large residual displacements under strong motions. The large residual displacements may substantially reduce the anti-seismic capacity of structures during the aftershock and increase the difficulty and cost of structural repair after an earthquake. To reduce the adverse residual displacement, several self-centering energy dissipation braces (SCEBs) have been proposed to be installed to the RC structures. To investigate the seismic responses of the RC structures with SCEBs under the earthquake excitation, an extended Bouc-Wen model with degradation and self-centering effects is developed in this study. The extended model realized by MATLAB/Simulink program is able to capture the hysteretic characteristics of the RC structures with SCEBs, such as the energy dissipation and the degradation, especially the self-centering effect. The predicted hysteretic behavior of the RC structures with SCEBs based on the extended model, which used the unscented Kalman filter (UKF) for parameter identification, is compared with the experimental results. Comparison results show that the predicted hysteretic curves can be in good agreement with the experimental results. The nonlinear dynamic analyses using the extended model are then carried out to explore the seismic performance of the RC structures with SCEBs. The analysis results demonstrate that the SCEB can effectively reduce the residual displacements of the RC structures, but slightly increase the acceleration.

• 철학연구
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• 제144권
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• pp.51-82
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• 2017

"성찰"의 제2성찰에서 데카르트는 '그러면 도대체 나는 무엇인가sed quid igitur sum'라고 묻는다. 클락(A. Clark)은 우리의 본질 규정에 해당하는 이 물음에 "우리는 부드러운 자아들"이라고 주장한다. 클락의 생각은 인지적 과정(cognitive process), 인지적 상태(cognitive state), 그리고 자아(self)가 생물학적 유기체 넘어로 확장될 수 있다는 확장된 마음 이론(the extended mind theory)의 자연스러운 귀결이다. 그러나 확장된 자아 개념이 도덕적 행위자의 자격을 가지기 힘들어 보인다. 지금까지 주로 인지적 과정과 인지적 상태의 확장 가능성에 대해 논쟁이 벌어졌지만, 확장된 자아에 행위의 책임귀속성이 부여될 수 있는 지에 관해서는 많은 논의가 이뤄지지 않았다. 본 논문에서 우선 레이코프와 존슨의 은유 이론과 행위자와 행위의 존재론적 본성에 대한 분석을 통해서 확장된 자아 개념이 기껏해야 은유적 수사법에 불과할 뿐, 행위자와 행위의 존재론적 본성에 대한 합리적인 이해로서는 적합하지 않다는 점이 드러날 것이다. 또한 인공적 도덕 행위자(AMA)의 문제를 분석하면서, 행위자의 필요충분조건으로 '강한 일인칭 시점'이 제시될 것이다. 끝으로, 확장된 자아 개념은 행위자로서의 우리 자신에 대한 이론적 설명으로는 적합하지 않다는 것이 명확하게 드러날 것이며, 인간인격(human person) 개념이 그 대안으로 제시될 것이다.

• 국제지역연구
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• 제21권1호
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• pp.79-96
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• 2017

본 연구는 중국 소비자들이 인식하는 명품매장의 서비스품질이 명품 구매행동에 어떠한 영향을 미치는 지를 규명하기 위해 수행되었다. 이를 위해 본 연구는 선행연구를 바탕으로 명품매장의 서비스품질을 서비스전달품질과 서비스환경품질로 구분하여 각 서비스품질 하위 요인이 명품 구매의도에 미치는 영향을 실증분석하였다. 특히 본 연구는 중국 소비자의 자아확장성이 명품매장의 서비스품질과 명품 구매의도 간의 관계에 대해 정(+)의 조절효과를 가질 것으로 예측하고 이를 실증분석하였다. 실증분석 결과를 요약하면 다음과 같다. 첫째, 중국 소비자의 명품매장에 대한 서비스전달품질과 서비스환경품질은 모두 명품 구매의도에 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 중국 소비자의 명품매장에 대한 자아확장성도 명품 구매의도에 정(+)의 영향을 미치는 것으로 나타났다. 한편 서비스품질과 구매의도 간의 관계에 대한 자아확장성의 조절효과를 실증분석한 결과 서비스환경품질과 구매의도 간의 관계에 대해서만 자아확장성이 조절효과를 가지는 것으로 나타났다. 본 연구결과는 중국소비자의 명품 구매행동에 대한 학문적 지식의 확장과 중국 소비자를 대상으로 효과적인 명품마케팅 전략 수립에 기여할 수 있을 것으로 기대된다.

• 유통과학연구
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• 제17권2호
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• pp.77-89
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• 2019

Purpose - This study presents the relationships between parent brand-self image congruence, parent brand -functional congruity, perceived fit between parent brand and extension product, and consumer's attitude toward extension product using the structural equation model. As for preceding concepts having a direct effect on consumer's attitude toward brand extension, the study focuses on parent brand-self image congruence and parent brand-functional congruity. It also looks at the effect of parent brand-self image congruence and parent brand-functional congruity on the consumer's attitude toward extension product and identifies if the perceived fit between parent brand and extension product is a concept playing a mediating role between parent brand-self image congruence or parent brand-functional congruity and consumer's attitude toward brand extension product. Research design, data, and Methodology - SPSS for Windows 18.0 and AMOS 18.0 were used for data analysis. Then, the Cronbach's α coefficient was obtained using SPSS for Windows 18.0 to measure reliability. In addition, the convergence and discriminative measures of the measured items were statistically verified using AMOS 18.0. Finally, we have validated a path model and a parameter model in which brand personality-self-matched attitude toward brand extension. Results - Studies have shown that the impact of parent brand-self image consistency and parent brand-functional consistency on the attitude of extended products was positive. Perceived fit between parent brand and extension products has been shown to play a role of intermediary between parent brand-self image congruence and consumer attitudes to extended products. However, perceived fit between parent brand and extension products did not play a role as intermediary between the parent brand-functional congruity and the attitude toward the extended product. Finally, in relation to the causal relationship between parent brand-congruity (self image/functionality) and attitudes to extended products. The effect of parent brand-functional coherency on attitudes toward extended products was found to be greater in groups with higher involvement than in those with lower involvement. Conclusions - Although few studies have been done on what variables mediated when parent brand-self image consistency and parent brand-functional coherency affect consumer attitude, this paper is significant in finding whether perceived fitness between the parent brand-congruity and the extension product is mediated.

• 복식문화연구
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• 제23권1호
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• pp.63-73
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• 2015

The purpose of this study was to investigate the effect of congruency of parent brand image with self-image, perceived risk, and product knowledge on the attitude towards extended product in fashion brand extension. A survey questionnaire was used to collect data from 170 female college students and collected data were subjected to descriptive analysis and regression analysis using SPSS Window program. The results of this study showed that the congruency of parent brand image with self-image and perceived risk had a positive effect on attitude towards extended product, whereas product knowledge had a negative effect on attitude towards extended product in fashion brand extension. Also, the congruency of parent brand image with self-image had a positive effect on the attitude towards extended product in fashion brand extension with positive moderating effect of perceived risk and negative mediating effect of product knowledge.

• 유통과학연구
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• 제12권9호
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• pp.83-93
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• 2014

Purpose - This study attempted to identify any influencing relationships, between the antecedent variables and the members' innovative work behavior, which were expected to influence organizational performance based on the extended theory of planned behavior (ETPB). Research design, data, and methodology - The survey was conducted on SMEs in Seoul and its metropolitan area. A total of 158 copies of effective questionnaires were used and were analyzed through correlation analysis, regression analysis, and multiple regression. Results - Self-efficacy, value, intrinsic motivation, and self-enhancing bias have been found to have a positive relationship with innovative work behavior. In addition, transformational leadership was found to moderate the existence of a statistically significant negative influence between value, intrinsic motivation, and innovative work behavior. Conclusions - The results suggest that leaders will be successful in winning members' trust through conducting their behaviors in accordance with the applicable ethical and moral standards and through their fair, transparent, and legitimate management practices with an attitude of 'taking the initiative and setting an example', and this will help solve such problems.

• 대한가정학회지
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• 제50권6호
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• pp.33-42
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• 2012

Today, many fashion companies use brand extension and it is especially important to conduct brand extension that coincides with consumer self-image, and maintains brand loyalty in order to succeed. The purpose of this study is to investigate the effect of congruency of parent brand image with self-image, brand loyalty, and brand involvement on the attitude towards extended product in fashion brand extension. A survey questionnaire was used to collect information from 170 female college students, and collected data were subjected to descriptive analysis, factor analysis, and regression analysis. Results showed that the congruency of parent brand image with self-image had a positive effect on the attitude towards extended product in fashion brand extension, with a positive mediating effect of brand loyalty, and a negative mediating effect of brand involvement. Also, the congruency of parent brand image with self-image and brand loyalty of the parent brand had a positive effect on the attitude towards the extended product, whereas brand involvement had a negative mediating effect on the attitude towards the extended product in fashion brand extension. The results of this study provide some useful suggestions to marketers in fashion industry: marketers should consider some psychological aspects of consumers such as congruency of parent brand image with self-image, brand loyalty, and brand involvement when conducting brand extension.

• 대한전자공학회논문지
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• 제25권6호
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• pp.614-628
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• 1988

In the original incremental Extended Horizon Control, the control inputs are computed recursively each step in the prediction horizon. But in this paper, we propose another incremental Extended Horizon Self-tuning Control version in which control inputs can be computed directly in any time interval. The effectiveness of this algorithm in a variable time delay or load disturbances environment is demonstrated by computer simulation. The controlled plant is a nonminimum phase system.

• 대한전자공학회논문지
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• 제23권4호
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• pp.439-444
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• 1986

In this paper the PID-B self-tuner[1] is extended to allow a less abrupt response to set point or plant parameter changes and to control a nonminimum phase plant. The proposed extended PID/ST derived from the direct pole-placement PID/ST is obtained with the Bezout identity as the underlying design method. And its control gains are normalized by the integral control gain. Although the integral control gain is normalized to 1 in our scheme, the so-called "set point and derivative kick" can be avoided sufficiently by normalizing the measurement vector and set point.